— 122 — 



cation, which is certainly Adiantum capillus-veneris and which 

 the collector, Mrs. A. E^, Scoullar, asserts was found at the 

 Delaware Water-Gap, neat Stroudsburg, Pa. The plants, several 

 of them, were found east of the railroad station at the Water- 

 Gap on the south side of the road through the gap. The spot 

 is marked by a pile* of small stones on the stone wall on the 

 north side of the road. It is hoped that these directions will 

 enable the next fern student who visits this place to also find the 

 fern and to give us further notes concerning" it. 



When I received the frond my own impression was that 

 it was a chance sporeling from some near-by greenhouse, but 

 Mrs. Scoullar writes me that there were several plants and she 

 knows of no greenhouse nearer than Stroudsburg. It may be 

 remembered that I long ago reported the occurrence of Nephro- 

 id i it in patens naturalized in the mouth of tunnels in New York 

 City which had undoubtedly arisen from wind-blown spores. 

 On many old walls in that city may be found the prothallia of 

 other ferns that rarely live long enough to produce a sporophyte. 

 So it appears that the spores of various exotics are in the air 

 and there seems no reason why one or more should not settle 

 at the Water-Gap. Then the only question would be that of their 

 ability to endure the winter. 



INDEX TO CURRENT LITERATURE RELATING 

 TO FERNS. 



Readers are requested to call attention to any omissions from 

 this list. 



Clute, W. N. A New Form of the Christmas Fern. Fern 

 Bulletin, Jl. 1904. 



Cujte, W. N. Concerning Forms and Hybrids. Fern Bulle- 

 tin, Jl. 1904. 



Clute, W. N. Raising Prothallia of Botrychium and Lyco- 

 p odium. Fern Bulletin, Jl. 1904. 



Clute, W. N. The Fourth Meeting of Fern Students. 

 Fern Bulletin, Jl. 1904. 



Clute, W. N. The Star Fern. Fern Bulletin, Jl. 1904. 



Eaton/ A. A. Is Asplenium lanceum American? Fern 

 Bulletin, Jl. 1904. 



